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fix(gui): eliminate row clipping at top of window

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This commit is contained in:
CJ van den Berg 2026-03-30 20:13:10 +02:00
parent 7fc2113b8a
commit a9efe0ca4c
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
2 changed files with 8 additions and 6 deletions
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7
src/gui/gpu/gpu.zig
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@ -20,7 +20,7 @@ const Rgba8 = gui_cell.Rgba8;
const log = std.log.scoped(.gpu);
// Maximum glyph atlas dimension. 4096 is universally supported and gives
// 65536+ glyph slots at typical cell sizes — far more than needed in practice.
// 65536+ glyph slots at typical cell sizes - far more than needed in practice.
const max_atlas_dim: u16 = 4096;
fn getAtlasCellCount(cell_size: XY(u16)) XY(u16) {
@ -339,8 +339,8 @@ pub fn paint(
top: u16,
cells: []const Cell,
) void {
const shader_col_count: u16 = @intCast(@divTrunc(client_size.x + font.cell_size.x - 1, font.cell_size.x));
const shader_row_count: u16 = @intCast(@divTrunc(client_size.y + font.cell_size.y - 1, font.cell_size.y));
const shader_col_count: u16 = @intCast(@divTrunc(client_size.x, font.cell_size.x));
const shader_row_count: u16 = @intCast(@divTrunc(client_size.y, font.cell_size.y));
const copy_col_count: u16 = @min(col_count, shader_col_count);
const blank_glyph_index = state.generateGlyph(font, ' ', .single);
@ -422,6 +422,7 @@ pub fn paint(
.cell_size_y = font.cell_size.y,
.col_count = shader_col_count,
.row_count = shader_row_count,
.viewport_height = @intCast(client_size.y),
};
sg.applyUniforms(0, .{
.ptr = &fs_params,